diff options
| -rw-r--r-- | arch/mips/txx9/generic/Makefile | 1 | ||||
| -rw-r--r-- | arch/mips/txx9/generic/spi_eeprom.c (renamed from arch/mips/txx9/rbtx4938/spi_eeprom.c) | 28 | ||||
| -rw-r--r-- | arch/mips/txx9/rbtx4938/Makefile | 2 | ||||
| -rw-r--r-- | arch/mips/txx9/rbtx4938/setup.c | 11 | ||||
| -rw-r--r-- | include/asm-mips/txx9/spi.h | 19 |
5 files changed, 41 insertions, 20 deletions
diff --git a/arch/mips/txx9/generic/Makefile b/arch/mips/txx9/generic/Makefile index 9bb34af26b7..986852cc774 100644 --- a/arch/mips/txx9/generic/Makefile +++ b/arch/mips/txx9/generic/Makefile @@ -8,5 +8,6 @@ obj-$(CONFIG_SOC_TX3927) += setup_tx3927.o irq_tx3927.o obj-$(CONFIG_SOC_TX4927) += mem_tx4927.o setup_tx4927.o irq_tx4927.o obj-$(CONFIG_SOC_TX4938) += mem_tx4927.o setup_tx4938.o irq_tx4938.o obj-$(CONFIG_TOSHIBA_FPCIB0) += smsc_fdc37m81x.o +obj-$(CONFIG_SPI) += spi_eeprom.o EXTRA_CFLAGS += -Werror diff --git a/arch/mips/txx9/rbtx4938/spi_eeprom.c b/arch/mips/txx9/generic/spi_eeprom.c index a7ea8b041c1..75c347238f4 100644 --- a/arch/mips/txx9/rbtx4938/spi_eeprom.c +++ b/arch/mips/txx9/generic/spi_eeprom.c @@ -18,29 +18,31 @@ #define AT250X0_PAGE_SIZE 8 /* register board information for at25 driver */ -int __init spi_eeprom_register(int chipid) +int __init spi_eeprom_register(int busid, int chipid, int size) { - static struct spi_eeprom eeprom = { - .name = "at250x0", - .byte_len = 128, - .page_size = AT250X0_PAGE_SIZE, - .flags = EE_ADDR1, - }; struct spi_board_info info = { .modalias = "at25", .max_speed_hz = 1500000, /* 1.5Mbps */ - .bus_num = 0, + .bus_num = busid, .chip_select = chipid, - .platform_data = &eeprom, /* Mode 0: High-Active, Sample-Then-Shift */ }; - + struct spi_eeprom *eeprom; + eeprom = kzalloc(sizeof(*eeprom), GFP_KERNEL); + if (!eeprom) + return -ENOMEM; + strcpy(eeprom->name, "at250x0"); + eeprom->byte_len = size; + eeprom->page_size = AT250X0_PAGE_SIZE; + eeprom->flags = EE_ADDR1; + info.platform_data = eeprom; return spi_register_board_info(&info, 1); } /* simple temporary spi driver to provide early access to seeprom. */ static struct read_param { + int busid; int chipid; int address; unsigned char *buf; @@ -57,7 +59,8 @@ static int __init early_seeprom_probe(struct spi_device *spi) dev_info(&spi->dev, "spiclk %u KHz.\n", (spi->max_speed_hz + 500) / 1000); - if (read_param->chipid != spi->chip_select) + if (read_param->busid != spi->master->bus_num || + read_param->chipid != spi->chip_select) return -ENODEV; while (len > 0) { /* spi_write_then_read can only work with small chunk */ @@ -80,11 +83,12 @@ static struct spi_driver early_seeprom_driver __initdata = { .probe = early_seeprom_probe, }; -int __init spi_eeprom_read(int chipid, int address, +int __init spi_eeprom_read(int busid, int chipid, int address, unsigned char *buf, int len) { int ret; struct read_param param = { + .busid = busid, .chipid = chipid, .address = address, .buf = buf, diff --git a/arch/mips/txx9/rbtx4938/Makefile b/arch/mips/txx9/rbtx4938/Makefile index 9dcc52ae5b9..f3e1f597b4f 100644 --- a/arch/mips/txx9/rbtx4938/Makefile +++ b/arch/mips/txx9/rbtx4938/Makefile @@ -1,3 +1,3 @@ -obj-y += prom.o setup.o irq.o spi_eeprom.o +obj-y += prom.o setup.o irq.o EXTRA_CFLAGS += -Werror diff --git a/arch/mips/txx9/rbtx4938/setup.c b/arch/mips/txx9/rbtx4938/setup.c index 7aba92a1239..ec6e81258f7 100644 --- a/arch/mips/txx9/rbtx4938/setup.c +++ b/arch/mips/txx9/rbtx4938/setup.c @@ -111,6 +111,7 @@ static void __init rbtx4938_pci_setup(void) #define SEEPROM2_CS 0 /* IOC */ #define SEEPROM3_CS 1 /* IOC */ #define SRTC_CS 2 /* IOC */ +#define SPI_BUSNO 0 static int __init rbtx4938_ethaddr_init(void) { @@ -120,7 +121,7 @@ static int __init rbtx4938_ethaddr_init(void) int i; /* 0-3: "MAC\0", 4-9:eth0, 10-15:eth1, 16:sum */ - if (spi_eeprom_read(SEEPROM1_CS, 0, dat, sizeof(dat))) { + if (spi_eeprom_read(SPI_BUSNO, SEEPROM1_CS, 0, dat, sizeof(dat))) { printk(KERN_ERR "seeprom: read error.\n"); return -ENODEV; } else { @@ -287,9 +288,9 @@ static int __init rbtx4938_spi_init(void) .mode = SPI_MODE_1 | SPI_CS_HIGH, }; spi_register_board_info(&srtc_info, 1); - spi_eeprom_register(SEEPROM1_CS); - spi_eeprom_register(16 + SEEPROM2_CS); - spi_eeprom_register(16 + SEEPROM3_CS); + spi_eeprom_register(SPI_BUSNO, SEEPROM1_CS, 128); + spi_eeprom_register(SPI_BUSNO, 16 + SEEPROM2_CS, 128); + spi_eeprom_register(SPI_BUSNO, 16 + SEEPROM3_CS, 128); gpio_request(16 + SRTC_CS, "rtc-rs5c348"); gpio_direction_output(16 + SRTC_CS, 0); gpio_request(SEEPROM1_CS, "seeprom1"); @@ -298,7 +299,7 @@ static int __init rbtx4938_spi_init(void) gpio_direction_output(16 + SEEPROM2_CS, 1); gpio_request(16 + SEEPROM3_CS, "seeprom3"); gpio_direction_output(16 + SEEPROM3_CS, 1); - tx4938_spi_init(0); + tx4938_spi_init(SPI_BUSNO); return 0; } diff --git a/include/asm-mips/txx9/spi.h b/include/asm-mips/txx9/spi.h index ddfb2a0dc43..0d727f35455 100644 --- a/include/asm-mips/txx9/spi.h +++ b/include/asm-mips/txx9/spi.h @@ -13,7 +13,22 @@ #ifndef __ASM_TXX9_SPI_H #define __ASM_TXX9_SPI_H -extern int spi_eeprom_register(int chipid); -extern int spi_eeprom_read(int chipid, int address, unsigned char *buf, int len); +#include <linux/errno.h> + +#ifdef CONFIG_SPI +int spi_eeprom_register(int busid, int chipid, int size); +int spi_eeprom_read(int busid, int chipid, + int address, unsigned char *buf, int len); +#else +static inline int spi_eeprom_register(int busid, int chipid, int size) +{ + return -ENODEV; +} +static inline int spi_eeprom_read(int busid, int chipid, + int address, unsigned char *buf, int len) +{ + return -ENODEV; +} +#endif #endif /* __ASM_TXX9_SPI_H */ |